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Experimental assessment of an innovative strengthening material for brick masonry infills

Martins, A. ; Vasconcelos, G. ; Fangueiro, R. ; Cunha, F.

Composites. Part B, Engineering, 2015-10, Vol.80, p.328-342 [Periódico revisado por pares]

Elsevier Ltd

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  • Título:
    Experimental assessment of an innovative strengthening material for brick masonry infills
  • Autor: Martins, A. ; Vasconcelos, G. ; Fangueiro, R. ; Cunha, F.
  • Assuntos: A. Carbon and glass fibres ; B. Mechanical properties ; Brick ; Collapse ; D. Mechanical testing ; Damage ; E. Braiding ; Masonry ; Masonry infills ; Mortars ; Solution strengthening ; Strengthening ; Walls
  • É parte de: Composites. Part B, Engineering, 2015-10, Vol.80, p.328-342
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: The vulnerability of masonry infill walls has been highlighted in recent earthquakes in which severe in-plane damage and out-of-plane collapse developed, justifying the investment in the proposal of strengthening solutions aiming to improve the seismic performance of these construction elements. Therefore, this work presents an innovative strengthening solution to be applied in masonry infill walls, in order to avoid brittle failure and thus minimize the material damage and human losses. The textile-reinforced mortar technique (TRM) has been shown to improve the out-of-plane resistance of masonry and to enhance its ductility, and here an innovative reinforcing mesh composed of braided composite rods is proposed. The external part of the rod is composed of braided polyester whose structure is defined so that the bond adherence with mortar is optimized. The mechanical performance of the strengthening technique to improve the out-of-plane behaviour of brick masonry is assessed based on experimental bending tests. Additionally, a comparison of the mechanical behaviour of the proposed meshes with commercial meshes is provided. The idea is that the proposed meshes are efficient in avoiding brittle collapse and premature disintegration of brick masonry during seismic events.
  • Editor: Elsevier Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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